Naturals on North Aspects

Location Name: 
Wildy Bowl
Region: 
Williams Lake Area
Date and time of observation: 
Sat, 11/30/2019 - 12:40
Location Map: 
United States
36° 32' 57.372" N, 105° 26' 19.41" W
US


Red Flags: 
Recent avalanche activity
Whumphing noises, shooting cracks, or collapsing
Recent loading by new snow, wind, or rain

Observation made by: Forecaster
Snowpit Observations
More detailed information about the snowpack: 

Went for a long tour to see if we had any natural avalanches overnight.  Lot's of blown down trees and pine bows everywhere below treeline.  Strong winds overnight impacted areas even below treeline.  There were many places that had scouring and deformation in spots from the wind. Other areas were rapidly loading.  Even though the winds are forecasted from the west it seems like the winds were swirling today. For the most part all natural avalanches seemed to happen sometime overnight during what was probably peak instability. The naturals that were observed were on Northerly aspects in areas that had seen wind loading.  It's hard to gauge what layer every avalanche ran on due to wind loading that filled in crowns but they appeared to be mostly steep slopes greater than 38 degrees and a lot of them were mid path from cross loading or below ridgetops.  TSV ski patrol had some impressive results with big explosives that appeared to be at the highest point at least a 6' crown on Kachina Peak.  

West, South and most East aspects appeared to result in no natural avalanches which may indicate that these avalanches were running on a persistent weak layer.  A snowpit on an East is showing a couple of wind slabs and with our cold temperatures we are seeing faceting happening on aspects other than north.

Photo 1: Impacts of wind below treeline with pine bows strewn about everywhere.

Photo 2: Strong winds during the day and overnight left many areas with supportable wind crusts

Photo 3: Avalanche debris from a NE aspect at about 12,200'

Photo 4: Natural crown on a NE aspect at about 12,000 in steep rocks

Photo 4: Wind transported snow that was constant throughout the day

Snowpit or crown profile photo or graph: 
Snowpack photos: 
Weather Observations
Blowing Snow: 
Yes
Cloud Cover: 
100% of the sky covered by clouds
Air temperature: 
Below Freezing
Wind Speed: 
Strong
Precipitation: 
Snow
Air temperature trend: 
Static
Wind Direction: 
Southwest
Accumulation rate: 
Less than 1 in. per hour
More detailed information about the weather: 

Very cold day, with temperatures in the single digits or below 0 during the day.  Strong winds that felt more like out of the NW but winds were swirling all day.  Lots of snow transporting